Causing a nuisance is precisely the point of making a protest otherwise it'd slip by completely unnoticed - look at the French for example with their blockades of Channel Ferry Ports and Autoroutes and so on every time something upsets them. If the FFMC (their equivalent of MAG) get pissed off about something they'll bring city centres to a complete standstill to convey their message.
If action affects nobody, then nobody will notice it and the message won't get heard, and nothing will ever be done about it...
It's up to us folks, if we ever want to change tyres, brake pads, brake lines, chain & sprockets, air filters, exhausts and the like for anything of our choice rather than original equipment, it's time to take a stance on it rather than be terribly British, do nothing and then whine about the lack of choice afterwards...
